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jasonvanwyk last won the day on March 24 2020

jasonvanwyk had the most liked content!


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  1. thanks mmacleod - I was just wondering If I could make an estimate within a certain day temperature range. But You guys are right I think that there are so many other factors to consider as to the make the "estimate" unreliable" - still would be a good study/experiment.
  2. thanks plonk - I'm intrigued, so I think this will be an interesting little experiment
  3. I thought i was...now I know I was
  4. Hi Forum, I have an interesting question. We know that PV panels use light energy and vacuum tube solar geysers use solar heat energy. Both sources are from the sun. I presume that there will be different inefficiencies within the two models, but I was just wandering... We have had a lot of rain lately, so my PV panels as well as my vacuum tube geysers have not been able to harvest as much energy as they usually do (it's been cold and light is poor). I have a backup electrical geyser element (2kw) in my vacuum tube geyser for days like this, regulated with a thermostat (as many
  5. wow - some serious transformers in that machine!
  6. @Youda Wow! thank you! This is really great. So my next question, then, would be why do manufacturers continue making LF inverters? Is there still a place for them? What are there Pros or claim to fame? Many thanks
  7. Hi Forum Could someone please point me to the right discussion on how to balance pylontech batteries. I did see a post here somewhere but I cant find it now. I have just commissioned my new system, with 4 x pylontech us3000, and I'm getting an over voltage alarm after bulk charging them 88%. they are currently on absorption mode now. I suspect its because the cells are not balanced? when I look at the actual physical batteries, I can see the lights on some have a higher SOC than others. Many thanks
  8. Thanks again Plonk - this definitely helps me understand it a bit more.
  9. Thanks plonkster! I’ve been challenged for installing an inverter with an “old technology” transformer, and since I’m not an electrical engineer, I was not quite sure how to answer. There must be some reason why this particular brand uses the transformer - I just don’t know why. I’m happy with my install and don’t plan on changing it. I did read somewhere in my electronic tinkering that a bench power supply that uses a transformer gives a much cleaner signal vs a switching one. Does that relate or is relevant to solar inverters too? Many thanks again
  10. Hi Forum would someone be able to explain and or point me to some good literature about the difference between an inverter that works with a transformer vs a switching transformer. are there any pros and cons? I realise that this might be a slightly controversial topic, but in the interest of learning i would really appreciate some help. Many thanks in advance.
  11. Hi Johan - I hope you've come right? Just a side note (most here probably know - perhaps you too) If you are using excel (other spreadsheets can do too) it would serve you well to learn how to filter and order data. This becomes really helpful in narrowing down pinpointing what you are looking for - not to mention saving you a time - good Luck!
  12. We are also doing something similar in our store, but on a slightly bigger scale. Will revert back here with pictures and learnings once we have installed
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